多车型自适应性动态称重阈值模型及评价  

Formulation and evaluation of multi-truck-type dynamic weight threshold model for WIM operations

作　　者：李巧茹[1,2] 刁文文 陈亮[1,2] 郑小刚 

机构地区：[1]河北工业大学土木工程学院,天津300401 [2]河北省土木工程技术研究中心,天津300401 [3]邢台市邢衡高速公路管理处,河北邢台054000

出　　处：《河北工业大学学报》2014年第2期92-96,共5页Journal of Hebei University of Technology

基　　金：河北省交通运输厅科技计划项目(Y-2011081)

摘　　要：缓解高速公路动态称重站引起的交通拥堵是提高整个高速公路网运营效率的关键,考虑我国货车车型分布特点,对单车型自适应性动态称重阈值计算模型进行改进,建立适用于多车型的自适应性动态称重阈值计算模型;通过对高速公路货车进行随机抽样,分析其超载量变化趋势,确定模型中阈值增量取值范围;运用VISSIM软件对该模型进行模拟仿真,结果表明:与传统的固定阈值系统相比,多车型自适应性动态称重阈值系统的超载控制率增加约20%,符合限重的车辆延误时间减少约43%.Mitigating a traffic jam caused by dynamic weighting of the station is critical to improve the operation efficiency of expressway network. The multi-type adaptability dynamic weight threshold algorithm is established based on Single models adaptability dynamic weight threshold algorithm, with consideration of the truck models feature o four country, By a random sampling of trucks on expressway, the scope of weight threshold incremental value is determined based on analysis of overloaded weight. The model is simulated with VISSIM. Compared with fixed threshold scenario, the capture rate increases about 20 % and the delay for legal-weight trucks spent in the weigh station is reduced by about 43 %.

关 键 词：高速公路 阈值模型 VISSIM 动态称重 货车车型 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]